Ans.

Octane No.:- Octane number is defined as the percentage, by volume, of  iso-octane in the
mixture of iso-octane and h-heptane. It is the measure of rating of Spark Ignition engine.

Octane No. = (volume of Iso-Octane in unit quantity) / (volume of mixture of Iso-Octane + H-hapteane in unit quantity) * 100

Cetane No.:- Cetane number is defined as the percentage, by volume, of n-cetane in the mixture of
n-cetane and alpha methyl naphthalene. It is the measure of rating of Compression Ignition engine.

Cetane No. = (volume of n-cetane in unit quantity) / (volume of mixture of n-cetane + alpha methyl naphalene in unit quantity) * 100

Ans:-
No, It will not work. It has high tendency to blast because petrol engine works on compression ratio of 6 to 10. And Diesel engine compression ratio lies between 15 to 22.

Thus on such high compression, gasoline (petrol) gets highly compressed beyond its flash point, which tend to cause a blast BhoOooooom !!!
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